World Series fever is already raging – online at least – where $100 tickets last night were being auctioned for up to $500.

But ticket-brokers in the metropolitan area say fans are shooting themselves in the foot.

“[The bidding] screws everything up,” said one disgruntled broker about the bidding war. “Just because somebody’s asking for that, doesn’t mean they’re gonna get it. They haven’t gone on sale yet at the Stadium. Why pay more than $100?”

Two $100 tickets to the first Yankee-Brave game in The Bronx, next Tuesday, were going on eBay last night for $1,025 – and that was for the upper deck.

“Now everybody who hasn’t yet bought a ticket is thinking, ‘I’m going to sell them and buy a new TV,'” said the angry broker.

There seemed to be several tickets offered at the online auction house, although official sales don’t start until Friday at 1 p.m.

Another online seller was offering eight tickets for Games 6 and 7 in Atlanta for $2,999.99. Two tickets for Game 2 in Atlanta were being offered for $1,000.

Two field-level tickets for a game at Yankee Stadium were up for $650.

Another ticket-broker, who also didn’t want his name used, said value is in the eyes of the buyer.

“What somebody pays is their business,” this broker said. “On eBay, things get sold for outrageous amounts.

“The best way to get a ticket? Be a season-ticket holder!” this broker advised. “Me – I’m sitting at home and watching it on TV. But my advice is, if you want a ticket, go stand on line.

“I heard everybody that was on line last year got a ticket.”

A third broker, who wanted to be identified only as Howie from Manhattan, said he was being offered tickets for $250, had offered $200, and could probably sell them for $300.

“When all the seats go on sale, everybody thinks they can make a fast dollar,” he said.

“Everything will go for more money, but not for big bucks. It’s not as exciting a Series as it was last year, or in 1996. And it isn’t like the Super Bowl.

“If they’re quality seats, by the bases, then people might pay $700 or $800. The cheap stuff will go for a couple of hundred.”

Another upstate broker said it didn’t surprise him that tickets were going for $500 a pop.